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What does X and Y equal in the equations 2X equals 3Y and 4X-3Y equals 12?
y = 4, x = 6
What 2 numbers equal 155 when added but equal 11 when subtracted?
let x = first number, y = second. x+y = 155 x-y = 11 add the two equations 2x= 166 x = 83 y = 72
What two numbers when divided equal 84 and when added equal 26?
110
What is the value of x for the equations x-y equals 120 and x plus y equals 150?
x-y = 120 x+y = 150 add equations: 2x = 270 x = 135 y = 15
How do you find equation when 2 equations and 1 coordinate is given?
By solving the simultaneous equations the values of x and y should be equal to the given coordinate
What does x and y equal in the equations y equals x plus 2 and 3x-y equals 6?
x = 4 and y = 6
What two numbers equal 33 when you add them and 9 when you subtract them?
42
What does X and Y equal in the equations 2X equals 3Y and 4X-3Y equals 12?
y = 4, x = 6
What 2 numbers equal 155 when added but equal 11 when subtracted?
let x = first number, y = second. x+y = 155 x-y = 11 add the two equations 2x= 166 x = 83 y = 72
What two numbers when divided equal 84 and when added equal 26?
110
If y equals x and y equals 6-x what is the solution?
y=x y=6-x Set the two equations equal to each other to yield a solution: x=6-x 2x=6 x=3 x=3 will satisfy both equations, that is plugging in x=3 will give the same value for y y=(3)=3 y=6-(3)=3
Yx-1 y-x 3 find the solution for the system?
y = x - 1 y - x = 3 y = x - 1 y = x + 3 Since both equations represent straight lines that have equal slopes, 1, then the lines are parallel to each other. That is that the lines do not intersect, and the system of the equations does not have a solution.
How do you solve a system of equations?
For your situation, you probably have 2 equations with 2 unknowns (x and y, for example). If this is the case, solve both equations for y (so you get y=....). Then, since these are both equal to the same thing (y) they are both equal to each other. This means set the 2 equations equal to each other. Now you will only have 1 unknown (x, most likely) and 1 equation (with stuff on both sides). Solve for x, you should get a number. Now, go back to the beginning where you solved for y and plug in your x-value into one of the equations to find a number for y.When you get done, it is always a good idea to substitute the solutions into the original equations to verify that your calculations were correct.
What is the value of x for the equations x-y equals 120 and x plus y equals 150?
x-y = 120 x+y = 150 add equations: 2x = 270 x = 135 y = 15
How do you find equation when 2 equations and 1 coordinate is given?
By solving the simultaneous equations the values of x and y should be equal to the given coordinate
X equals 8-2y y-x equals 4?
Presumably this is a simultaneous equation in the form of: x = 8-2y y-x = 4 Which is the same as: 2y+x = 8 y-x = 4 Add both equations together: 3y = 12. So y will equal 4. Substitute the value of y into the original equations to find the value of x: So: x = 0 and y = 4
What is x plus y equals 30?
It is an equation of a straight line. But it is not possible to tell you what x and y equal because you have only given one equation. Since there are two variables (x and y), you need at least 2 equations to solve for x and y. (Likewise if you had 3 variables, you would need at least 3 equations).
